Digital Commons Network^™

Single-Photon Quantum-Nondemolition Detectors Constructed With Linear Optics And Projective Measurements, Pieter Kok, Hwang Lee, Jonathan P. Dowling

Faculty Publications

Optical quantum-nondemolition devices can provide essential tools for quantum information processing. Here, we describe several optical interferometers that signal the presence of a single photon in a particular input state without destroying it. We discuss both entanglement-assisted and nonentanglement-assisted interferometers, with ideal and realistic detectors. We found that the existing detectors with 88% quantum efficiency and single-photon resolution can yield output fidelities of up to 89%, depending on the input state. Furthermore, we construct expanded protocols to perform quantum-nondemolition detections of single photons that leave the polarization invariant. For detectors with 88% efficiency, we found polarization-preserving output fidelities of up …

Narrowing Of Electromagnetically Induced Transparency Resonance In A Doppler-Broadened Medium, Ali Javan, Olga Kocharovskaya, Hwang Lee, Marlan O. Scully

Faculty Publications

We derive an analytic expression for the linewidth of electromagnetically induced transparency (EIT) resonance in a Doppler-broadened system. It is shown here that for relatively low intensity of the driving field the EIT linewidth is proportional to the square root of intensity and is independent of the Doppler width, similar to the laser-induced line narrowing effect described by Feld and Javan. In the limit of high intensity we recover the usual power-broadening case where the EIT linewidth is proportional to the intensity and inversely proportional to the Doppler width. © Oxford University Press 2002.

The Effect Of Reactor Geometry On Frontal Polymerization Spin Modes, John A. Pojman, Jonathan Masere, Enrico Petretto, Mauro Rustici, Do Sung Huh, Min Suk Kim, Vladimir Volpert

Faculty Publications

Using reactors of different sizes and geometries the dynamics of the frontal polymerization of 1,6-hexanediol diacrylate (HDDA) and pentaerythritol tetraacrylate (PETAC), with ammonium persulfate as the initiator were studied. For this system, the frontal polymerization exhibits complex behavior that depends on the ratio of the monomers. For a particular range of monomers concentration, the polymerization front becomes nonplanar, and spin modes appear. By varying the reactor diameter, we experimentally confirmed the expected shift of the system to a greater number of "hot spots" for larger diameters. For square test tubes a "zig-zag" mode was observed for the first time in …

The Depth Of Porphyrin In A Membrane And The Membrane's Physical Properties Affect The Photosensitizing Efficiency, Adina Lavi, Hana Weitman, Robert T. Holmes, Kevin M. Smith, Benjamin Ehrenberg

Faculty Publications

Photosensitized biological processes, as applied in photodynamic therapy, are based on light-triggered generation of molecular singlet oxygen by a membrane-residing sensitizer. Most of the sensitizers currently used are hydrophobic or amphiphilic porphyrins and their analogs. The possible activity of the short-lived singlet oxygen is limited to the time it is diffusing in the membrane, before it emerges into the aqueous environment. In this paper we demonstrate the enhancement of the photosensitization process that is obtained by newly synthesized protoporphyrin derivatives, which insert their tetrapyrrole chromophore deeper into the lipid bilayer of liposomes. The insertion was measured by fluorescence quenching by …

Microstructure And Some Functional Properties Of Spray Dried Cheddar Whey Concentrated By Ultrafiltration Or Combination Of Ultrafiltration And Vacuum Evaporation, Kayanush J. Aryana, Zahur Z. Haque

Faculty Publications

In order to study the influence of the vacuum evaporation (VE) process on the functionality of whey protein concentrates (WPC's), Cheddar WPC's were produced with and without VE, viz. by i) ultrafiltration (UF) and spray drying (SD) (UFSD), and by ii) UF, VE and SD (UFVESD). Geling properties and interfacial microstructure around residual fat were studied by transmission electron microscopy. Both WPC's were hydrated with 0.1 M NaCl at pH 7.0 (10% protein w/v) and gels were made in glass tubes by heating for 15 min at 90°C. Electron dense membrane like structures were seen at the oil-water interface of …

Compelled Expression And The Public Forum Doctrine, Howard M. Wasserman

Faculty Publications

This Article analyzes the theory underlying the Fist Amendment protection against being compelled by government to utter, present, or fund unwanted expression. The author creates a three-part model for determining when the fire speech rights of an objecting payer have been triggered. Under that model, First Amendment rights are implicated when there has been an actual government compulsion requiring an individual to give money to, or for the express benefit of, a specific private speaker for some use that, in itself, should be understood as expressive. This model strikes a necessary balance between the important theoretical underpinnings of the protection …

Evaluation Of A Compound Probability Model With Tower-Mounted Scatterometer Data, David G. Long, Benjamin E. Barrowes

Faculty Publications

Six months of data from the YSCAT94 experiment conducted at the CCIW WAVES research platform on Lake Ontario, Canada, are analyzed to evaluate a compound probability model. YSCAT was an ultrawideband small footprint (ap 1 m) microwave scatterometer that operated at frequencies of 2-18 GHz, incidence angles from 0° to 60°, both h-pol and v-pol, and which tracked the wind using simultaneous weather measurements. The probability distribution function of the measured instantaneous backscattered amplitude (p(a)) is compared to theoretical distributions developed from-the composite model and a simple wave spectrum. Model parameters of the resulting Rayleigh/generalized lognormal distribution probability density function …

Implementation Of Court-Annexed Environmental Mediation: The District Of Oregon Pilot Project, Lisa A. Kloppenberg

Faculty Publications

No abstract provided.

A Moment In The The Times: Law Professors And The Court-Packing Plan, Kyle Graham

Faculty Publications

When Franklin Roosevelt unveiled his "court-packing" plan, law professors found themselves in an unfamiliar position. For perhaps the first time ever, their professional opinions were being sought by journalists and politicians, for consumption by the general public. In faculty meetings and private correspondence, law professors considered the propriety of taking a stand for or against the President's plan. Ultimately, some professors chose to go public with their support (or opposition); others considered such commentary as a form of advocacy that was incompatible with their job descriptions. This article relates and examines the debate among law professors over both the court-packing …

Promoting Effective Ethical Infrastructure In Large Law Firms: A Call For Research And Reporting, Elizabeth Chambliss, David B. Wilkins

Faculty Publications

No abstract provided.

Making Sense Of Bush V. Gore, Jonathan Van Patten

Faculty Publications

No abstract provided.

Water Transport In Polymer Electrolyte Membrane Electrolyzers Used To Recycle Anhydrous Hcl: I. Characterization Of Diffusion And Electro-Osmotic Drag, Sathya Motupally, Aaron J. Becker, John W. Weidner

Faculty Publications

In this paper, diffusion and electro-osmotic drag of water across Nafion® membranes in the presence of HCl are characterized. For all the measurements, one side of the Nafion membrane was in contact with liquid water and the other side with gaseous anhydrous HCl. To characterize diffusion of water, the open-circuit flux of water across a catalyst-coated Nafion 115 membrane was measured as a function of HCl flow rate and temperature at a constant cell pressure of 1 atm. Due to the nature of varying driving force for diffusion as a function of HCl flow rate, the experimental data was analyzed …

Comparisons Between Enron And Other Types Of Corporate Misconduct: Compliance With Law And Ethical Decision Making As The Best Form Of Public Relations, Cheryl L. Wade

Faculty Publications

(Excerpt)

One of the most important lessons that Enron offers is that sometimes managers lie and boards fail to do their jobs. Enron’s most valuable lessons relate to corporate governance, financial disclosure, accounting practices, and the management of pension funds. One of the most illuminating lessons that Enron offers, however, may be found in the reaction of jurists, legal scholars, the media, corporate professionals, elected officials, and the investing public to the Enron collapse. The general sense of public outrage is as large as the huge financial loss suffered by investors and employees.

There is a lesson to be derived …

Trusted Autonomy, Michael N. Huhns, Duncan A. Buell

Faculty Publications

We describe how agents are the right building blocks for constructing trustworthy systems. Robust software and trusted autonomy represent the future for agent technology and software engineering.

Agents As Web Services, Michael N. Huhns

Faculty Publications

Web services are extremely flexible. Most advantageously, a developer of Web services need not know who or what will use the services being provided. The paper discusses current standards for Web services, directory services and the Semantic Web. It considers how agents extend Web services in several important ways.

Agent Societies: Magnitude And Duration, Michael N. Huhns

Faculty Publications

If you only need agents to search the Web for cheap CDs, scalability is not an issue. The Web can support numerous agents if each acts independently. In short order, however, billions of embedded agents that sense their environment and interact with us and other agents will fill our world, making the human environment friendlier and more efficient. These agents will need not only scalable infrastructures and communication services, but also scalable social services encompassing ethics and laws. Research projects are under way around the world to develop and deploy such services. The author takes a look at the critical …

Is The "Adequacy" Standard A More Political Question That The 'Equality' Standard?: The Effect Of Standards-Based Education On Judicial Standards For Education Finance Litigation, Avidan Y. Cover

Faculty Publications

This Note argues that the recent shift in state court litigation from an equality claim to one of adequacy has compelled many courts to insert themselves in the discussion and creation of educational policy that was previously viewed as unacceptable. This evolution may render courts vulnerable to appellate challenges and criticisms of nonjusticiability and political question doctrine violations regarding institutional competence and judicial prudence. In addition, the demise of the equality argument diminishes the moral strength of the court's normative valuation capacity. Section I examines the history of education finance cases and reviews the three waves of litigation strategies, which …

Reparations And The Colonial Dilemma: The Insurmountable Hurdles And Yet Transformative Benefits, Ediberto Román

Faculty Publications

The Seventh Annual Latina and Latino Critical Race Theory ("LatCrit") Conference held in May 2002 at the University of Oregon, not unlike other efforts in the movement, addressed a panoply of challenging, provocative, and controversial issues. Perhaps one the most intellectually interesting and yet troubling panels addressed reparations for the inhabitants of United States' colonial territories. Specifically, the panel was titled "Reparations, Redress, and Remedies: Undoing the Legacy of Colonialism and Imperialism." Members of the academy as well as a representative of Puerto Rico's Independence Party participated in a lively discussion and debate. Although the articles resulting from this panel …

Reflecting Latino Culture In Our Classrooms: A Quick Start For Teachers., Christine Canning, Mary Salazar-Guenther, Julio Polanco-Noboa

Faculty Publications

This paper describes how the University of Northern Iowa's San Antonio Regional Student Teaching Program developed a course to provide cultural information on Hispanic Americans for its predominantly white student teachers. The course was delivered over 2 semesters; with students doing most work in five 2-hour meetings on campus. During the student teaching semester; they implemented the ideas and activities that they had created during the course. The paper presents the course syllabus; which offers a background on Hispanics and five sessions that emphasize how to reach Hispanic students; Mexican and Mexican American culture (holidays; food; art; and music); literature …

Anodic Behavior Of Ti In Koh Solutions: Ellipsometric And Micro-Raman Spectroscopy Studies, A. Prusi, Lj. Arsov, Bala Haran, Branko N. Popov

Faculty Publications

Anodic formation of oxide films on titanium surfaces, in various concentrations of aqueous KOH solutions, have been studied using ellipsometry and micro-Raman spectroscopy. By in situ ellipsometric measurements the coefficient of film thickness growth and indexes of refraction of anodic oxide films have been determined. The voltage at which the oxide film breaks down is strongly dependent on the KOH concentration. Further, the solution concentration strongly influences the potential at which the oxide film is transformed from the amorphous state to crystalline form. Using micro-Raman spectroscopy four crystalline forms of titanium oxides, namely, anatase, brookite, corundum, and rutile, have been …

Access To Justice For The Self-Represented Litigant: An Interdisciplinary Investigation By Designers And Lawyers, Ronald W. Staudt, Paula Hannaford-Agor

Faculty Publications

To assist courts, the National Center for State Courts, in partnership with the Illinois Institute of Technology's Institute of Design and the Chicago-Kent College of Law, launched a research project to examine court processes and recommend modifications to eliminate or reduce procedural barriers to access for self-represented litigants. The projects had three major tasks: (1) to identify major barriers to access to justice that self-represented litigants encounter due to court procedures and administrative requirements; (2) to employ system design methodology to redesign court processes to remove those barriers, and (3) to translate the conceptual model for redesigned court system into …

The Social Welfare Of Advertising To Children, Dennis D. Crouch

Faculty Publications

The aim of this Comment is to approach the issue of advertising to children through an examination of economic incentives and efficiency. The Comment ultimately makes the claim that televised advertisement of products, such as junk food, directed toward children may be inefficient and tend to decrease social welfare. Although they may be compelling, this paper does not rely on the secondary negative externalities often associated with television, such as the cost of treating diabetes and heart disease. Rather, the inefficiency discussed in the Comment involves the informational qualities of advertising. Advertising directed towards young children can be thought of …

Philosophizing With Teenagers, Susan Verducci

Faculty Publications

Part of a special section on connecting with adolescents. Although few adolescents are ever formally exposed to philosophy at middle or high school, almost all are philosophers in the sense that they ask and seek answers to questions that are fundamentally philosophical. Furthermore, studying philosophy can be quite useful for adolescents as it requires that they practice developing clear and coherent reasons for believing or doing something, provides the tools with which they can follow the logic of any ideological stance, and provides models of alternative answers and a way of examining how the historical period in which one lives …

The Education And Competencies Of School Library Media Specialists: A Review Of The Literature, Donna M. Shannon

Faculty Publications

No abstract provided.

An Equity Paradigm For Preventing Genetic Discrimination, Anita Silvers, Michael Ashley Stein

Faculty Publications

No abstract provided.

A Symposium Précis, Thomas E. Baker

Faculty Publications

This article is an introduction and overview of the Drake University Law School symposium Judicious Choices: Nominating and Confirming Supreme Court Justices held in March of 2002. It identifies important constitutional law issues in nominating and confirming the President's appointments to Supreme Court Justices in the United States.

A Roundtable Discussion With Stephen L. Carter & Michael J. Gerhardt, Thomas E. Baker

Faculty Publications

Transcript of a discussion regarding the United States Supreme Court, the Supreme Court justices and justice nominees, the Senate process for confirming nominees and related issues such as fitness to serve on the court and judicial activism.

Bringing Online Learning To Campus: The Hybridization Of Teaching And Learning At Brigham Young University, Gregory L. Waddoups, Scott L. Howell

Faculty Publications

The primary purpose of Brigham Young University (BYU) is to provide students with a combination of sacred and secular education often described as the BYU experience. Achieving this purpose is challenged by the rapid growth in Church membership and an enrollment cap of 30,000 students. To address these challenges, BYU sponsors the use of technology to bridge the gap between the increased Church membership and the number of students allowed under the enrollment caps. This institutional case study shows how these challenges have influenced the hybridization of teaching and learning for on campus (resident) and off campus (distance) students. It …

Testimony, Refuge, And The Sense Of Place: A Conversation With Terry Tempest Williams, David Thomas Sumner

Faculty Publications

This interview with Terry Tempest Williams is part of a series of conversations with contemporary western writers about the ethical and cultural implications of nature writing.

Factors For Effective Learning Groups In Face-To-Face And Virtual Environments, Charles R. Graham

Faculty Publications

Group work has been a powerful instructional method used in face-to-face learning environments. To date, group work has not reached the same prominence in distance learning environments where there is a strong emphasis on independent or individualistic learning. This may be due in part to the perceived difficulty of engaging students in working together at a distance, as well as a general lack of knowledge about the factors that contribute to effective virtual group work. This paper reviews the literature related to creating effective learning groups in face-to-face and virtual environments. Research from the following four areas was used: cooperative …